Heating apparatus.



N0..76'3,724. PATENTED JUNE 28, 1904'. J. GOLLIS.

HEATING APPARATUS.

APPLICATION FILED AUG. 14. 1903.

N0 MQDEL.

Witnesses 2 Inventor TNE NORRIS PETEHS C0. PNOTG-LITHU. WASHINGYON. DJ)

, a vent-valve for the radiator.

UNITED STATES J OIIN GOLLIS, OF DES MOINES, IOWA, ASSIGNOR TO WILLIAM P.GOLLIS,

Patented June 28, 1904.

PATENT OFFICE.

OF NEW YORK, N. Y.

HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 763,724, dated June 28,1904.

Application filed August 14, 1903.

To all whom it may concern.-

Be it known that I, 'JoHN CoLLIs, a citizen of the United States,residing at Des Moines, in the county of Polk and State of Iowa, haveinvented certain new and useful Improve ments in Heating Apparatus, ofwhich the following is a specification.

The objects of my invention are to provide a heating system consistingof a circulatingvalve, a radiator, and a vent-valve communieating withthe circulating-valve adapted for use in connection with steam above orbelow atmospheric pressure orin connection with hot water, so arrangedthat when used in connection with steam at or below atmospheric pressureair may be exhausted from the entire radiator vent-valve and the pipeconnecting the vent-valve with the circulating-valve by applying suctionto the return connected with the circulating-valve, and when used inconnection with steam above atmospheric pressure or with hot water underpressure the air may escape from the vent-valve, and when the waterreaches the air-valve the air-valve willautomatically close and thewater of condensation from the steam or the hot water used for heatingwill return through the pipe leading from the vent-valve to thecirculating-valve.

A further object is to provide a circulatingvalve for heating apparatushaving openings to communicate, respectively, with the riser and returnpipes, with the radiator, and with My invention consists in certaindetails in the construction, arrangement, and combination of the variousparts ofthe device where-' by the objects contemplated are attainechashereinafter more fully set forth, pointed out in my claims, andillustrated in the accompanying drawings, in which Figure l'shows a sideelevation of a radiator provided with my improved circulatingvalve and apipe communicating between the circulating valve and a vent-valveon theradiator. Fig. 2 shows a vertical central sectional view of my improvedcirculating-valve. Fig. 3 shows a horizontal sectional view on theindicated line 3 3 of Fig.2. Fig. 4 shows an enlarged detail perspectiveview of the Serial No. 169,430- (No model.)

of the cylindrical body 10 is ascrew-threaded extension '13. to receivethe return-pipe 14.

Screwed into the top of the cylindrical body is a bonnet15, having acentral opening to receive the valve-stem 17 and also having a cap 18screwed thereto, with a packing-chamber 19'between the parts 15 and 18.On the side of the cylindrical body 10 directly opposite thescrew-threaded extension 11 is a large screw-threaded extension 20 toreceive a union 21, which union is designed to be screwed into theradiator 22. The upper part of the extension 20 is preferably arrangedin the same horizontal plane as the upper part of the extension 11, andthe bottom ofthe extension 20 is arranged a slight distance above thelower end of the cylindrical body 10, and within the union 21 is ahorizontal partition 22, the end portion of which nearest thecylindrical body inclines downwardly toward said cylindrical body at 23.Between thebottom of the cylindrical body 10 and the extension 13 arethe integral arched cross-pieces 24, having openings between them. Thevalve proper is composed of a segmental portion 25, the curvature ofwhich is such as to permit it to rotate within the cylindrical body andengage the inner walls of the cylindrical body. On its top and bottomare the plates 26 and 27, the former being provided with an angularopening 28, designed to receive the valve-stem 17, and the latterprovided with a journal 29 to enter a concentric opening in thecrosspieces 24, and formed integral with the part 25 is a disk 30, thetop of which is preferably in horizontal alinement with the bottom ofthe extension 11 and also in horizontal alinement with the inclinedportion 23. Formed in the part.25 above the disk 30 is acirculatingopening 31, and the lower end of the part 25 is provided witha notch 32 to provide communication between the extension 20 below thepartition 23 and the extension 13 when the part 25 is in its closedposition. Fixed to the interior of the cylindrical body 10 is a stop 33,arranged to limit the movement of the valve in one direction, andopposite from the stop 33 is another stop 34, arranged to limit themovement of the valve 25 in the opposite direction. The size of thevalve 25 is such that when the valve is in engagement with the stop 34it closes the opening between the cylindrical body and the extension 20,and when it is in engagement with the stop 33 the opening between thecylindrical body and the extension 20 is unobstructed.

The numeral 35 indicates an opening in one side of the extension 13, and36 indicates a pipe communicating with the interior of the extension 13through the opening 35. The other end of the pipe 36 communicates with aT 37, which T also communicates with the end of the radiator oppositefrom the end to which the circulating-valve is attached. The remainingpart of the T communicates with a vent-valve 38.

The vent-valve 38 (illustrated in Fig. 6) forms no part of my presentinvention, and yet one performing substantially the same functions is avaluable addition to my improved heating apparatus. Contained within thevalve-chamber is a float 39, normally resting on a valve seat 40, saidvalve being attached to the valvestem 41. This valve-stem 41 rests uponthe bottom of the valve and is made of some material which will expandwhen subjected to heat. On top of the float 39 is a tapered lug 42 toenter a tapered opening 43 at the top of the valve-chamber, and abovethe tapered opening 43 is a gravity ball-valve 44 of ordinaryconstruction. In the use of this valve and assuming that it is desiredto use steam below atmospheric pressure, then when the air is exhaustedfrom the radiator the ball-valve 44 will close by gravity and thefloat-valve 39 will be held firmly against its seat by suction, thuspreventing the air from entering the radiator. If it is desired to usethe heating apparatus in connection with steam above atmosphericpressure, then when the steam enters the radiator the air will begradually forced out through the vent-valve, because it will elevate thefloat suflicient to permit the air to escape under the float, and yet itwill not firmly hold the plug 42 upwardly, but will permit the escape ofthe air through thetop of the valve-casing. In the event that watershould enter the bottom of the valve-casing, then the float 39 would beelevated and the plug 42 forced against the seat 43 and the Valveclosed, or when the steam reaches the bottom of the valve-casing. itsheat will cause the valve-stem 41 to expand, and thus firmly hold theplug 42 against its seat. W hen the heating apparatus is used inconnection with water reaches the float 39 it will firmly hold the plug42 against its seat.

In practical use, and assuming that it is desired to use the heatingapparatus in connection with steam below atmospheric pressure, then theair is exhausted through the return 14, and when this is done it isobvious that a partial vacuum will be produced in the radiator and inthe pipe communicating between the vent-valve and the circulating-valve,and as the partial vacuum is established the steam may be admitted inthe ordinary way. If it is desired to use steam above atmosphericpressure, then the steam is admitted through the radiator, and if thewater of condensation should be forced out of the radiator and into thevent-valve the vent-valve would be closed, as before explained, and thewater of condensation could readily run downwardly through the pipe 36and into the return portion of the circulating-valve. This it wouldreadily do, because the pressure of the steam in the riser is greaterthan in the return. When the apparatus is intended for use in connectionwith hot water, the air is forced outwardly through the vent-valve bythe admission of the water, and when the water reaches the float in thevent valve the vent valve is immediately closed, and any water that mayenter the lower portion of the vent-valve could immediately return tothe bottom of the circulating-Valve through the pipe 36. Hence the sameheating apparatus may be successfully used in connection with steameither at,above, or below atmospheric pressure or in connection with hotwater, and when the apparatus is used in any of these ways no water candischarge through the vent-valve, and all of said water that mightaccumulate in the vent-valve is returned through the pipe 36 to thecirculatingvalve, and particularly when the apparatus is intended foruse in connection with steam below atmospheric pressure. Then it is notnec essary to provide any exhausting means to be applied to thevent-valve independent of the exhausting means applied to thereturn-pipe because of the pipe connecting the vent-valve with thereturn-pipe.

I am aware that in a heating apparatus intended only for use inconnection with steam below atmospheric pressure all of the air could beexhausted through the return and no vent-valve would be necessary.However, such a system could not be used at all in connection with steamabove atmospheric pressure, and one of the important features of myinvention is the provision of a heating apparatus to be used inconnection with steam eithcr above or below atmospheric pressure or withhot water.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States therefor, is

1. The combination of a radiator, riser and return pipes communicatingwith the radiator, a vent-pi pe communicating at one end with theradiator and at its other end with said returnpipe and a vent-valvecommunicating with said vent-pipe, said vent-valve discharging to theoutside atmosphere and automatically closed by suction in the vent-pipe.

2. The combination of a radiator, riser and return pipes communicatingwith the radiator, a vent-valve communicating with the radiator, saidvalve closed against the admission of air from the exterior of thevalve, opened automatically by internal pressure to discharge to theoutside atmosphere and closed automatically by greater internalpressure, and a pipe communicating at one end with both the ventvalveand the radiator and at its other end with the return-pipe.

3. "he combination of a radiator, riser and return pipes communicatingwith the radiator, a vent-valve communicating with the radiator, saidvalve closed against the admission of air from the exterior of thevalve, opened automatically by internal pressure to discharge to theoutside atmosphere and closed automatically by greater internal pressureand also automatically closed by the accumulation of water in thevent-valve chamber, and a pipe communicating at one end with both thevent-valve and the radiator and at its other end with the return-pipe.

4. The combination of a radiator, riser and return pipes communicatingwith the radiator, a vent-valve communicating with the radiator, saidvalve closed against the admission of air from the exterior of thevalve, opened automatically by internal pressure to discharge to theoutside atmosphere, and closed automatically by greater internalpressure and also automatically closed by the accumulation of water inthe vent-valve chamber, said valve also closed automatically by a risein temperature inside of the valve-chamber, and a pipe communicating atone end with both the vent-valve and the radiator and at its other endwith the return-pipe.

5. The combination with a radiator of a valve-casing having acylindrical body portion open at its top, a hollow extension at oneside, a riser-pipe communicating with said hollow extension at the side,a hollow extension at the bottom of the valve-casing, a return-pipecommunicating therewith, a cross-piece on the interior of the casingbetween the cylindrical chamber and the return extension, a hollowextension on the side of the valve-casing opposite from the riserextension communicating with the cylindrical body portion and with theradiator, a horizontal partition in said latter extension, a valveformed with a segmental body portion, a top piece and a bottom piece, ajournal connected with the bottom piece and seated in the saidcross-piece, a disk secured to the valve of a diameter to closelyfit'the interior of the cylindrical body portion, said disksubstantially in alinement with the body of the riser extension and thesaid horizontal partition, said body portion of the valve formed withcirculating-openings above and below said disk, said return extensionformed with an opening in its side, a ventvalve communicating with theradiator and a vent-pipe communicating with the vent-valve and with thesaid opening in the side of the return extension.

JOHN (JOLLIS Witnesses:

J. RALPH ORWIG, S. F. CHRIsTY.

